Display screen with a graphical user interface



FIG. 1 is a front view of a display screen with a graphical user interface showing our new design;

FIG. 2 is a second embodiment thereof; and,

FIG. 3 is a third embodiment thereof.

The broken lines showing a display screen, text, and graphic elements illustrate portions of the article, and form no part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 